What are the solutions of each equation? Use a graph of the related function. a. x2 + 4 = 4 b. x2 + 16 = 0 c. x2 − 49 = 0

Step-by-step explanation:

a)  x^2 + 4 = 4 is equivalent to x^2 = 0, which has two real, rational roots:  {0, 0}

b)  x^2 + 16 has two equal, imaginary roots:  {-4i, 4i}

c)  x^2 - 49 has two different, real roots:  {-7, 7}